Bi-fold door facing system



FIG. 1 is a front perspective view of a bi-fold door facing system according to a first version of our design;

FIG. 2 is a front elevational view;

FIG. 3 is a front perspective view of a bi-fold door facing system according to a second version of our design; and,

FIG. 4 is a front elevational view.

The broken lines depict portions of the bi-fold door facing system and are not part of the claimed design. 

CLAIM The ornamental design for bi-fold door facing system, as shown and described. 